https://askdruniverse.wsu.edu/2015/12/14/why-do-trees-have-rings/

Dec 14, 2015 ... Dear Cynthia,. While walking in the woods with my friend Gary Chastagner, we stumbled upon some old tree stumps. The stumps had so many ...

https://simple.wikipedia.org/wiki/Growth_ring

Some animals have annual growth rings like this. They are shells and corals. Counting the growth rings shows how old a tree is. The growth ring in furniture, ...

http://www.indefenseofplants.com/blog/2016/2/8/why-trees-have-rings-and-why-they-are-so-useful

Feb 8, 2016 ... To date, we have an unbroken dendrochronological record for the northern ... All of this would not be possible if it were not for tree rings.

https://www.theforestacademy.com/tree-knowledge/annual-growth-rings/

Trees are top-notch biological indicators. Their annual rings reveal the events that have occurred in our environment. Would you like to know more about annual ...

http://www.museum.state.il.us/muslink/forest/htmls/popups/how_tr_form.html

How Tree Rings Form. Trees have two types of growth: primary growth and secondary growth. · Primary growth occurs at the tips of roots and stems and results ...

https://www.sciencefocus.com/nature/do-trees-in-rainforests-have-seasonal-growth-rings/

Rings appear in line with seasonal extremes in weather, something that rainforest habitats often don't experience, but some tropical trees do have rings.

https://www.youtube.com/watch?v=mbdur2TjTbk

May 3, 2013 ... You can tell how old a tree was by the rings in its trunk, but where do they come from? James May is here to answer. "Subscribe to Earth Lab for ...

http://www.icogitate.com/~tree/treerings.ac04.htm

From tree rings, you can explore the history and health of the forest. ... Tree rings have many uses. A cross-section of a tree often shows a distinct pattern of ... Species of tree do differ in their response to weather changes. One might respond ...

https://scied.ucar.edu/tree-rings

The trees don't need to be cut down to see their rings. Instead, a special tool ... Removing such a core does little or no damage to the tree. Old trees tell us about  ...

https://climatekids.nasa.gov/tree-rings/

Tree rings can provide information about past climate! ... Do you have to cut down a tree to see the rings? No way! You can count the rings of a tree by collecting ...